[Hexagon] Add PIC support

[oota-llvm.git] / lib / Target / Hexagon / HexagonInstrInfoV4.td

diff --git a/lib/Target/Hexagon/HexagonInstrInfoV4.td b/lib/Target/Hexagon/HexagonInstrInfoV4.td
index 7389a40f4a4ca4ccb81eae584f9062cf55485914..87d6b359f5fb1d8de1f62f7cfac830f152fd42cf 100644 (file)
--- a/lib/Target/Hexagon/HexagonInstrInfoV4.td
+++ b/lib/Target/Hexagon/HexagonInstrInfoV4.td
@@ -1838,43 +1838,22 @@ def: LogLogNot_pat<or,  or,  C4_or_orn>;
 // below are needed to support code generation for PIC
 //===----------------------------------------------------------------------===//
 
-def SDT_HexagonPICAdd
+def SDT_HexagonAtGot
+  : SDTypeProfile<1, 3, [SDTCisVT<0, i32>, SDTCisVT<1, i32>, SDTCisVT<2, i32>]>;
+def SDT_HexagonAtPcrel
   : SDTypeProfile<1, 1, [SDTCisVT<0, i32>, SDTCisVT<1, i32>]>;
-def SDT_HexagonGOTAdd
-  : SDTypeProfile<1, 2, [SDTCisVT<0, i32>, SDTCisVT<1, i32>]>;
-
-def SDT_HexagonGOTAddInternal   : SDTypeProfile<1, 1, [SDTCisVT<0, i32>]>;
-def SDT_HexagonGOTAddInternalJT : SDTypeProfile<1, 1, [SDTCisVT<0, i32>]>;
-def SDT_HexagonGOTAddInternalBA : SDTypeProfile<1, 1, [SDTCisVT<0, i32>]>;
-
-def Hexagonpic_add      : SDNode<"HexagonISD::PIC_ADD", SDT_HexagonPICAdd>;
-def Hexagonat_got       : SDNode<"HexagonISD::AT_GOT", SDT_HexagonGOTAdd>;
-def Hexagongat_pcrel    : SDNode<"HexagonISD::AT_PCREL",
-                                 SDT_HexagonGOTAddInternal>;
-def Hexagongat_pcrel_jt : SDNode<"HexagonISD::AT_PCREL",
-                                 SDT_HexagonGOTAddInternalJT>;
-def Hexagongat_pcrel_ba : SDNode<"HexagonISD::AT_PCREL",
-                                 SDT_HexagonGOTAddInternalBA>;
-
-// PIC: Map from a block address computation to a PC-relative add
-def: Pat<(Hexagongat_pcrel_ba tblockaddress:$src1),
-         (C4_addipc u32ImmPred:$src1)>;
-
-// PIC: Map from the computation to generate a GOT pointer to a PC-relative add
-def: Pat<(Hexagonpic_add texternalsym:$src1),
-         (C4_addipc u32ImmPred:$src1)>;
-
-// PIC: Map from a jump table address computation to a PC-relative add
-def: Pat<(Hexagongat_pcrel_jt tjumptable:$src1),
-         (C4_addipc u32ImmPred:$src1)>;
-
-// PIC: Map from a GOT-relative symbol reference to a load
-def: Pat<(Hexagonat_got (i32 IntRegs:$src1), tglobaladdr:$src2),
-         (L2_loadri_io IntRegs:$src1, s30_2ImmPred:$src2)>;
-
-// PIC: Map from a static symbol reference to a PC-relative add
-def: Pat<(Hexagongat_pcrel tglobaladdr:$src1),
-         (C4_addipc u32ImmPred:$src1)>;
+
+// AT_GOT address-of-GOT, address-of-global, offset-in-global
+def HexagonAtGot       : SDNode<"HexagonISD::AT_GOT", SDT_HexagonAtGot>;
+// AT_PCREL address-of-global
+def HexagonAtPcrel     : SDNode<"HexagonISD::AT_PCREL", SDT_HexagonAtPcrel>;
+
+def: Pat<(HexagonAtGot I32:$got, I32:$addr, (i32 0)),
+         (L2_loadri_io I32:$got, imm:$addr)>;
+def: Pat<(HexagonAtGot I32:$got, I32:$addr, s30_2ImmPred:$off),
+         (A2_addi (L2_loadri_io I32:$got, imm:$addr), imm:$off)>;
+def: Pat<(HexagonAtPcrel I32:$addr),
+         (C4_addipc imm:$addr)>;
 
 //===----------------------------------------------------------------------===//
 // CR -